GURPS Magic: Plant Spells
W23!

Vegetation -- omnipresent, silent, essential for life, and able to kill. The fauna discounts the flora at its own peril.

GURPS Magic: Plant Spells expands on the green-based magical college from GURPS Magic with a cornucopia of new information, including:

Full GURPS information on broad botanical categories and stats for specific types of plants.

Two new meta-traits: Body of Leaves and Green Mind (think like a plant!).

Details on making various flora-focused mages, including appropriate or modified advantages and disadvantages, plus eight new perks.

Spells! A total of 38 new plant-related spells, including a range of offensive, defensive, and miscellaneous varieties. Unleash the Razor Grass, don Tree Bark Armor, or escape as you Run Across Treetops.